<template>
    <div class="box">
        22222
        <div class="box2">
            sss 111
        </div>
    </div>
</template>
<script>
export default {

}
</script>
<style lang="scss">
.box {
    height: 80vh;
// overflow: hidden;
    .box2 {
        height: 200vh;
    }
}
</style>